Nut-lock.



No. 831,602. PATENTED SEPT. 25, 1906. I

J. UOOKERLEY.

NUT LOCK.

APPLICATION FILED NOV.22,1905.

dcszla di /Zea t by eys JOSIAH COOKERLEY, OF SOUTH MILFORD, INDIANA.

NUT-LOCK.

Specification df Letters Patent.

Patented Sept. 25, 1906.

Application filed November 22, 1905. Serial No. 288,563.

To all whom it may concern} Be it knownthat I, JOSIAH COOKERLEY, acitizen of the United Statr s, rc siding at South Milford, in the countyof Lagrange and State of Indiana, have invented a new and usefulNut-Lock, of which the following is a specification.

This invrntion relates to nut-locks, and has for its object to provide asimple, durable, and inexpensive device .of this character forlockingnuts upon bolts, so as to PI'uVnIlta'ccidental displacement of the same.I

A further obj cct of the invention is to generally improve the class ofdevices so as to add to thrir utility and durability as well as toreduce the cost of manufacture.

\Vith these and other objects in view the invention consists in theconstruction and novel combination and arrangement of parts, hereinafterfully described, illustrated in the accompanying drawings, and pointedout in the claims hereto appended, it being understood that variouschanges in form, proportion, and minor details of construction may beresorted to without departing from the principle or sacrificing any ofthe advantages of this invention.

In the accompanying drawings,forminga part of this specification, FigureA is a perspcctive view of a nut-lock constructed in accordance with myinvention. Fig. 2 is a top plan view of the same. Fig. 3 is aperspective view of the nut detached, and Fig. 4 is a similar viewof thewasher.

Similar numerals of reference indicate corresponding parts in all of thefigures of the drawings.

In the preferred form of the invention the bolt 5 is shown passingthrough a suitable support 6 and provided with alongitudinallydisposedgroove or-channcl 7 for the reception of the locking-lug 8 of a washer9.

The Washer 9 is preferably rectangular in shape, as shown, and providedwith a central opening 10, adapted to receive the bolt 5, said washerbeing formed with a transverse recess 11, defining a locking-shoulder 12for engagement with the locking-tongues-13 of the nut 14. Thelocking-tongues 13 are produced by forming slits or cuts 15 at theintersection'of the angular faces of nuts, said cuts being preferablyarranged parallel with and slightly spaced from the bottom of the nut,as shown, so as to permit said tongues to be readily bent downwardlyinto engagement with the shoulder 12 after the nut has been uallyadjusted, as will be more fully explained hereinafter.

The transverse recess 11 extends from the longitudinal edge 16 of thewasher and graddccreases in depth from said edge to an imaginary linedrawn tangentially to the walls of the bolt-receiving opening and parallel with the opposite longitudinal edge 17, said recess alsodecreasing in depth from tlic shoulder 12 to an imaginary line extendingtransversely of the washer and intersecting the axis of the opening 10,as shown. By having the recess formed in this manner any particularlocking-tongue may be forced downwardly into engagement. with theshoulder 1?. after the nut has been adjusted, the remaining tonguespresenting a Hat smooth surface for engagement with the correspondinglyflat surface of the washer, so that the nut may be rotated in theopposite direction to release said nut when desired.

In operation after the nut has been adjusted on the bolt a chisel orother suitable tool is inserted in the slot or cut and the tongue bentor forced downwardly into engagement with the shoulder 12, therebylocking the nut on the bolt and effectually preventing accidentaldisplacement of the same.

In order to release the nut, it is simply necessary to givcthc nut afurther rotation, which causes the) tongue to engage the inclined faceor bottom wall 18 of the recess, which restores the tongue to its normalposition, thereby permitting the nut to bo rotatcd in the reversedirection and readily removed from the bolt;

From the foregoing description it will be seen that there is provided aninexpensive and efficient nut-lock capable of being used on rail-joints,wagons, bridge structures, or wherever a device of this character isfound desirable.

Having thus described the invention, what is claimed isl. Thecombination with a bolt, of a nut having slits formed at theintersection of its angular side walls defining locking tongues, and awasher having an opening for thc reception of the bolt and provided witha transverse recess defining a shoulder, adapted to engage thelockingtongues, said recess gradually decreasing in depth from onelongitudinal edge of the washer to a point adjacent the opposite edgethereof and also decreasing in depth from the shoulder to theboltrecoiving opening.

2. The combination with a bolt, of a nut I having slits formed at thejuncture of its angular side Walls defining locking-tongues, an a washerprovided with an opening for the reception of the bolt and having atransversely-disposed recess formed therein adapted to receive thelocking-tongues, said recess graduall decreasing in depth from onelongitudina edge of the washer to an ima inary line drawn tangentiallyto the walls 0% the bolt-receiving o ening and disposed approximatelyparalle with the opposite longitudinal edge of the-washer.

3. The combination with a bolt, of a nut having slits formed at thejuncture of its an ular side walls defining locking-tongues and awasherprovided with an opening for the reception of the bolt and havinga transversely-dis osed recess formed therein defin.- ing a shoul eradapted to engage the tongues,

said recess gradually decreasing in depth from one longitudinal edge ofthe washer to an ima inary line drawn tangentially to the walls 0% thebolt-receiving opening, and also decreasing in depth from the shoulderto an imaginary line extending transversely of the -angular side walls,and a flat washer provided with a bolt-receiving opening the walls ofwhich are formed with an inwardly-eXtend-.

ing lug adapted to engage the longitudinal groove, there being avtransverse recess l formed in the washer defining a transverse shoulderadapted to engage the t ngueswhen the latter are bent downwardl saidrecess,

graduall decreasing in depth om one lonitudina edge of the Washer to animaginary in'e drawn tangentially to the Walls of the bolt-receivingopening, and also decreasing in depth from the shoulder to approximatelythe center of said bolt-receiving opening.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of two witnesses.

i J OSIAH' COOKERLEY. Witnesses:

HARMEa M. NEUNAM, M: I. REED.

